Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Biocides; animal or insect repellents or attractants
Patent
1995-01-20
1996-01-16
Page, Thurman K.
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Biocides; animal or insect repellents or attractants
424 93461, 424 931, 424 9346, 424409, 424418, 424468, A01N 2500
Patent
active
054846005
ABSTRACT:
A composite particle timed release pest control agent comprising a dense core particle, a floatation particle, a pesticide, and a composite forming adhesive. The density of the core particle adapts the composite for broadcast application to aqueous and periodically flooded treatment locus and causes the composite to penetrate foliage to contact environmental water. After contact with water at a treatment locus, water causes the adhesive to soften disassembling the composite particle releasing the floatation particle and the pesticide to the surface of the environmental water. At the surface the dissolution rate of the adhesive causes a timed release of the pesticide for action. The composite particle of the invention can be formulated in a quick release formulation that releases the active pest control agent for control in a one to twelve day period or within 0.1 to 72 hours. A long lasting slow release composite can be manufactured that can be used to obtain effective pest control for 10 to 30 days. In a preferred mode, a bacterial pest control agent is used to control mosquito populations during prime mosquito hatching.
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Merdian, L.L.C.
Page Thurman K.
Webber Pamela S.
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